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212034101 = 290972889
BaseRepresentation
bin11001010001101…
…10001000110101
3112202222110002212
430220312020311
5413240042401
633012343205
75153155136
oct1450661065
9482873085
10212034101
11a97623a4
125b014b05
1334c0b986
1420235c8d
1513934dbb
hexca36235

212034101 has 4 divisors (see below), whose sum is σ = 212109900. Its totient is φ = 211958304.

The previous prime is 212034059. The next prime is 212034107. The reversal of 212034101 is 101430212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 189090001 + 22944100 = 13751^2 + 4790^2 .

It is a cyclic number.

It is not a de Polignac number, because 212034101 - 26 = 212034037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212034107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33536 + ... + 39353.

It is an arithmetic number, because the mean of its divisors is an integer number (53027475).

Almost surely, 2212034101 is an apocalyptic number.

It is an amenable number.

212034101 is a deficient number, since it is larger than the sum of its proper divisors (75799).

212034101 is an equidigital number, since it uses as much as digits as its factorization.

212034101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75798.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 212034101 is about 14561.3907646214. The cubic root of 212034101 is about 596.3051649915.

Adding to 212034101 its reverse (101430212), we get a palindrome (313464313).

The spelling of 212034101 in words is "two hundred twelve million, thirty-four thousand, one hundred one".

Divisors: 1 2909 72889 212034101